overlapping letters

[Microkiller]

I am using this on my web site. And it works for most users. But for some users, they saw some letters in the label are overlapped with others and the font of the letter is strange and not clear.
All the users are use Chrome to view my web site. Do you know what may cause this problem?

[markrcote]

Sorry for neglecting this. I am sure that the rendering would differ from browser to browser. If you could give me some specific examples, I'll take a look.